michelle obama is supposed to walk across the stage in a couple of minutes from now. in three days, the convention will move down the road to the stadium which is the bank of america stadium. it is bigger and seats about 50,000 more people. that is where the president will deliver his prime time speech to the nation. the task? make the case for another four years despite the sluggish economy and high unemployment rate. on this labor day they are trying to remind voters the president inherited an economic mess. he did. but the numbers present tough odds. no president since roosevelt has won re-election with unemployment above 7.2 percent. the rate now is 8.3 percent. and mitt romney is gaining ground in key swing states, including here in north carolina. we will start off with mike emanuel. there is backlash from a key democratic constituency for holding the democratic national convention here. we are lacking in union workers here. >>reporter: north carolina is the right-to-work state. the union membership here in north carolina is the lowest by percentage in the count